# IMMUNEERING CORP CLASS A COM

IMMUNEERING CORP CLASS A COM is a security (CUSIP 45254E107) tracked across SEC portfolio filings. 109 institutional managers reported $167.9M on Form 13F as of 2026-06-30; 7 registered fund positions totaling $27.7M via N-PORT as of 2026-05-31.

## Summary

- Issuer: IMMUNEERING CORP
- Class: CLASS A COM
- CUSIP: 45254E107
- Asset category: EC
- 13F holders: 109
- 13F value: $167.9M
- 13F period: 2026-06-30
- N-PORT fund positions: 7
- N-PORT value: $27.7M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 109 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| FMR LLC | BOSTON, MA | $51.1M | 9,697,938 |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $16.9M | 2,568,293 |
| Sanofi | Paris, I0 | $13.5M | 2,708,559 |
| [VANGUARD CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/338002) | MALVERN, PA | $12.1M | 2,288,341 |
| [MARSHALL WACE, LLP](https://search.stillhousedata.com/firm/160885) | LONDON, X0 | $10.5M | 1,996,585 |
| BlackRock, Inc. | New York, NY | $7.9M | 1,507,258 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $5.8M | 1,102,712 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $3.4M | 637,944 |
| Occam Crest Management LP | Darien, CT | $2.9M | 545,098 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $2.8M | 447,278 |
| [Connor, Clark & Lunn Investment Management Ltd.](https://search.stillhousedata.com/firm/107557) | VANCOUVER, A1 | $2.1M | 400,363 |
| [LEVIN CAPITAL STRATEGIES, L.P.](https://search.stillhousedata.com/firm/137147) | NEW YORK, NY | $2.1M | 414,000 |
| Summit Financial, LLC | PARSIPPANY, NJ | $2.0M | 376,749 |
| UBS Group AG | Zurich, V8 | $2.0M | 376,284 |
| [SOUTHPORT MANAGEMENT, L.L.C.](https://search.stillhousedata.com/firm/161182) | Wilson, WY | $1.8M | 277,501 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Fidelity Growth Company Fund](https://search.stillhousedata.com/fund/S000007119) | Fidelity Mt. Vernon Street Trust | $17.0M | 1.72% |
| [T. Rowe Price New Horizons Fund, Inc.](https://search.stillhousedata.com/fund/S000002106) | T. ROWE PRICE NEW HORIZONS FUND, INC. | $3.6M | 2.85% |
| [T. Rowe Price Health Sciences Fund, Inc.](https://search.stillhousedata.com/fund/S000002088) | T. ROWE PRICE HEALTH SCIENCES FUND, INC. | $3.3M | 3.02% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $3.2M | 0.40% |
| [T. Rowe Price Health Sciences Portfolio](https://search.stillhousedata.com/fund/S000002083) | T. ROWE PRICE EQUITY SERIES, INC. | $273K | 4.12% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $156K | 0.03% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $110K | 0.04% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/45254E107.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.